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摘要：Calculate RoadsTime Limit:5 Seconds Memory Limit:32768 KBLittle Vitta needs to go from home to school every day. On her way to school, there are n crossing and m roads in total. Because of lazy, she often gets up late in the morning. In order to get to school on time, she wishes that she can always 阅读全文

摘要：488. Dales and HillsTime limit per test: 0.5 second(s)Memory limit: 262144 kilobytesinput: standardoutput: standardLet's consider a number sequence a1, ·s, aN. We call the continuous subsequence ai, ·s, aj, ·s, ak (1 ≤ i at+1 for any j ≤ t at+1 for any i ≤ t #include #include #inc 阅读全文

摘要：486. "Bulls and Cows"Time limit per test: 0.25 second(s)Memory limit: 262144 kilobytesinput: standardoutput: standardYou probably know the game "bulls and cows". Just in case, we explain the rules. The first player picks a four-digit number with all digits distinct (leading zero 阅读全文

摘要：499. Greatest Greatest Common DivisorTime limit per test: 0.5 second(s)Memory limit: 262144 kilobytesinput: standardoutput: standardAndrew has just made a breakthrough in sociology: he realized how to predict whether two persons will be good friends or not. It turns out that each person has an inner 阅读全文